Cwylla

According to the Old English Dictionary:

an;

cwylla

m. A well, spring; fons :-- Riht súþ be eástan ðam cwyllan óþ ða wýde strǽte right south by east of the spring as far as the wide road, Cod. Dipl. 409; A. D. 946; Kmbl. ii. 265, 32. [Ger. quelle, f. a spring, source, fountain.] cwylla